Not gonna lie, I was having difficulty finding good AVNs for a long time now, and came expecting only a wank, and found myself completely immersed in the story! I loved it all, specially the godly humor, seriously, the game is too funny!
I don't know if there's any inspiration, but it certainly reminded me quite a bit of Eternum, and I'm quite sure this game has plenty of potential to become a masterpiece such as it, if it's already this good.
Also, Vineeta best girl.